diff --git a/lib/MC/MCParser/AsmParser.cpp b/lib/MC/MCParser/AsmParser.cpp
index da3fc72057e..85f463c2bd5 100644
--- a/lib/MC/MCParser/AsmParser.cpp
+++ b/lib/MC/MCParser/AsmParser.cpp
@@ -635,6 +635,7 @@ bool AsmParser::Run(bool NoInitialTextSection, bool NoFinalize) {
     const MCSection *Sec = getStreamer().getCurrentSection().first;
     bool InsertResult = getContext().addGenDwarfSection(Sec);
     assert(InsertResult && ".text section should not have debug info yet");
+    (void)InsertResult;
     Sec->setBeginSymbol(SectionStartSym);
     getContext().setGenDwarfFileNumber(getStreamer().EmitDwarfFileDirective(
         0, StringRef(), getContext().getMainFileName()));